Here's a philosophical question: Can you be a Bitcoin Maximalist and still have some pet alts?
Yes.
Here are a few requirements, off the top of my head:
You can remain a bitcoin maximalist, as long as you recognize that:
1) bitcoin is the ONLY meaningful long-term fundamental investment (largely based on its proof of work and currently, there are no other coins that are providing such foundational security in the space),
2) as long as you do not invest more than about 1/3 of your total crypto portfolio into various alts (and even 1/3 seems a bit much but could be reasonable in some circumstances),
3) as long as you recognize that you are going to have to strategically exit most of the various alts and have some kind of plan for such exit, unless the alts compose of such a small amount of your total crypto holdings, such as less than 5%, then you are not really relying on them for long term value.
4) Of course, an exception to the above 3 would be if you already hold a decently-sized value in bitcoin that allows you to be self-sustainable based on the passive income from your bitcoins, such as holding more than $5million in bitcoin for someone who has passive income requirements of less than $100k per year, would allow you to play around and to hold higher percentages of your crypto investment in other cryptos (largely because your living needs are already largely covered)....